The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
One-Shot Synthesis of Expanded Heterohelicene Exhibiting Narrowband Thermally Activated Delayed Fluorescence
Abstract
An expanded heterohelicene consisting of three BN 2 -embedded [4]helicene subunits ( V-DABNA-Mes ) has been synthesized by one-shot triple borylation. The key to success is the excessive use of boron tribromide in an autoclave. Based on the multiple resonance effect of three boron and six nitrogen atoms, V-DABNA-Mes exhibited a narrowband sky-blue thermally activated delayed fluorescence with a full width at half-maximum of 16 nm. The resonating π-extension minimized the singlet–triplet energy gap and enabled rapid reverse intersystem crossing with a rate constant of 4.4 × 10 5 s –1 . The solution-processed organic light-emitting diode device, employed as an emitter, exhibited a narrowband emission at 480 nm with a high external quantum efficiency of 22.9%.
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Cites
Recent advances in organic thermally activated delayed fluorescence materials
Yang, Z., Mao, Z., Xie, Z., Zhang, Y., Liu, S., Zhao, J., Xu, J., Chi, Z., & Aldred, M. P. (2017) · Chemical Society Reviews · doi:10.1039/c6cs00368k · Cited by 2,395
Samanta, P. K., Kim, D., Coropceanu, V., & Brédas, J.-L. (2017) · Journal of the American Chemical Society · doi:10.1021/jacs.6b12124 · Cited by 1,025
Cited by
Mamada, M., Hayakawa, M., Ochi, J., & Hatakeyama, T. (2024) · Chemical Society Reviews · doi:10.1039/d3cs00837a · Cited by 482
Self-citationWu, X., Ni, S., Wang, C.-H., Zhu, W., & Chou, P.-T. (2025) · Chemical Reviews · doi:10.1021/acs.chemrev.5c00021 · Cited by 325
Metadata
- Authors
- Oda, S., Kawakami, B., Yamasaki, Y., Matsumoto, R., Yoshioka, M., Fukushima, D., Nakatsuka, S., & Hatakeyama, T.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2021-12-23
- Volume
- 144
- Issue
- 1
- Pages
- 106-112
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W4200487931
- Cited by
- 290
- References
- 2
- FWCI
- 13.32
- Type
- journal article
- Language
- en
- Open access
- closed
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- Oda, S., Kawakami, B., Yamasaki, Y., Matsumoto, R., Yoshioka, M., Fukushima, D., Nakatsuka, S., & Hatakeyama, T. (2022). One-Shot Synthesis of Expanded Heterohelicene Exhibiting Narrowband Thermally Activated Delayed Fluorescence. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.1c11659
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